* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
            border-radius: 24px;
            padding: 24px 28px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        a {
            color: #c84b1c;
            text-decoration: none;
            transition: 0.2s;
        }
        a:hover {
            color: #8b2e0e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #0b1e33;
        }
        h1 {
            font-size: 2.4rem;
            margin: 0.5em 0 0.3em;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            margin: 1.6em 0 0.6em;
            padding-bottom: 0.3em;
            border-bottom: 4px solid #ff6f00;
            display: inline-block;
        }
        h3 {
            font-size: 1.3rem;
            margin: 1.4em 0 0.5em;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2em 0 0.4em;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.2em;
            font-size: 1.02rem;
            color: #2d3748;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 12px 0 8px;
            font-size: 0.9rem;
            color: #6b7a8f;
            border-bottom: 1px solid #e9edf2;
            margin-bottom: 16px;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 10px;
            color: #b0c0d0;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #c84b1c;
        }
        .breadcrumb a:hover {
            color: #8b2e0e;
        }
        .breadcrumb .active {
            color: #2d3748;
            font-weight: 600;
        }
        .header-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 16px;
            border-bottom: 2px solid #eef3f8;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0b1e33 0%, #1e3a5f 50%, #c84b1c 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.03em;
            display: inline-block;
            line-height: 1.2;
        }
        .my-logo small {
            font-size: 0.7rem;
            display: block;
            -webkit-text-fill-color: #6b7a8f;
            color: #6b7a8f;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .my-logo a {
            text-decoration: none;
            color: inherit;
            -webkit-text-fill-color: inherit;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list a {
            font-weight: 500;
            color: #1e3a5f;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .nav-list a:hover {
            border-bottom-color: #ff6f00;
            color: #c84b1c;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e3a5f;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: #eef3f8;
        }
        #nav-toggle {
            display: none;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f0f4fa;
            border-radius: 40px;
            padding: 4px 12px 4px 18px;
            border: 1px solid #dce4ed;
            transition: 0.2s;
        }
        .header-search:focus-within {
            border-color: #ff6f00;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.15);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 4px;
            font-size: 0.9rem;
            outline: none;
            min-width: 140px;
            color: #1e2a3a;
        }
        .header-search button {
            background: none;
            border: none;
            color: #c84b1c;
            font-size: 1rem;
            cursor: pointer;
            padding: 6px 8px;
            border-radius: 50%;
            transition: 0.2s;
        }
        .header-search button:hover {
            background: #ffede0;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #7a8a9e;
            margin: 6px 0 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .last-updated i {
            color: #ff6f00;
        }
        .feature-image {
            margin: 24px 0 28px;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            background: #eef3f8;
        }
        .feature-image img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
        }
        .feature-image figcaption {
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #5a6a7e;
            background: #fafcff;
            border-top: 1px solid #e9edf2;
        }
        section {
            margin: 32px 0;
        }
        .context-links {
            background: #f7faff;
            padding: 18px 24px;
            border-radius: 16px;
            border-left: 5px solid #ff6f00;
            margin: 28px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
        }
        .context-links a {
            font-weight: 500;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .context-links a i {
            font-size: 0.8rem;
            color: #ff6f00;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 40px 0 20px;
            background: #fafcff;
            border-radius: 20px;
            padding: 28px 32px;
            border: 1px solid #e9edf2;
        }
        .comment-box,
        .rating-box {
            background: #fff;
            border-radius: 16px;
            padding: 20px 24px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            border-bottom: 2px solid #eef3f8;
            padding-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-box textarea {
            width: 100%;
            padding: 14px 16px;
            border: 1px solid #dce4ed;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            transition: 0.2s;
            background: #f9fbfd;
        }
        .comment-box textarea:focus {
            border-color: #ff6f00;
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.08);
        }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #dce4ed;
            border-radius: 12px;
            font-size: 0.95rem;
            margin: 8px 0 12px;
            background: #f9fbfd;
        }
        .comment-box input[type="text"]:focus {
            border-color: #ff6f00;
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.08);
        }
        .btn {
            background: #1e3a5f;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #c84b1c;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 75, 28, 0.25);
        }
        .btn-secondary {
            background: #ff6f00;
        }
        .btn-secondary:hover {
            background: #e05f00;
            box-shadow: 0 6px 20px rgba(255, 111, 0, 0.25);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
            margin: 12px 0 16px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #d0d8e0;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ff6f00;
        }
        .rating-value {
            font-weight: 700;
            color: #1e3a5f;
            font-size: 1.1rem;
        }
        footer {
            margin-top: 48px;
            padding-top: 28px;
            border-top: 2px solid #eef3f8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 20px;
        }
        .footer-grid h4 {
            margin-top: 0;
            color: #0b1e33;
        }
        .footer-grid p,
        .footer-grid a {
            font-size: 0.92rem;
            color: #4a5a6e;
        }
        .friend-link {
            display: block;
            background: #f4f8ff;
            padding: 18px 22px;
            border-radius: 16px;
            margin: 16px 0 24px;
            border: 1px solid #e0e8f0;
        }
        .friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            font-weight: 500;
            color: #1e3a5f;
        }
        .friend-link a:hover {
            color: #c84b1c;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding: 18px 0 8px;
            font-size: 0.85rem;
            color: #7a8a9e;
            border-top: 1px solid #e9edf2;
            margin-top: 12px;
        }
        .copyright strong {
            color: #1e3a5f;
        }
        @media (max-width: 820px) {
            .wrapper {
                padding: 16px 18px;
                margin-top: 12px;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .nav-bar {
                width: 100%;
                justify-content: space-between;
                margin-top: 8px;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 16px 0 8px;
                border-top: 1px solid #e9edf2;
                gap: 4px;
            }
            .nav-list a {
                padding: 10px 12px;
                display: block;
                border-radius: 8px;
            }
            .nav-list a:hover {
                background: #f7faff;
                border-bottom-color: transparent;
            }
            .hamburger {
                display: inline-block;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .header-search {
                flex: 1;
                max-width: 220px;
            }
            .header-search input {
                min-width: 80px;
                width: 100%;
            }
            .interaction-area {
                grid-template-columns: 1fr;
                padding: 18px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .context-links {
                flex-direction: column;
                gap: 6px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .wrapper {
                padding: 12px 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.2rem;
            }
            .header-search input {
                min-width: 60px;
                font-size: 0.8rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .mt-1 {
            margin-top: 12px;
        }
        .mb-1 {
            margin-bottom: 12px;
        }
        .highlight {
            background: linear-gradient(to right, #fff3e0, #ffe0b2);
            padding: 0 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .insight-box {
            background: #e8f0fe;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 20px 0;
            border-left: 5px solid #1e3a5f;
        }
        .insight-box i {
            color: #ff6f00;
            margin-right: 8px;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        th {
            background: #1e3a5f;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 10px 16px;
            border-bottom: 1px solid #eef3f8;
            background: #fff;
        }
        tr:hover td {
            background: #f7faff;
        }
        .toc {
            background: #f7faff;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 20px 0 28px;
            border: 1px solid #e0e8f0;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ul {
            list-style: none;
            columns: 2;
            column-gap: 30px;
            padding: 0;
        }
        .toc li {
            padding: 4px 0;
            break-inside: avoid;
        }
        .toc a {
            color: #1e3a5f;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .toc a:hover {
            color: #c84b1c;
            text-decoration: none;
        }
        .toc a::before {
            content: "⚽";
            font-size: 0.85rem;
        }
        @media (max-width: 600px) {
            .toc ul {
                columns: 1;
            }
        }